Display screen or portion thereof having a graphical user interface for displaying a dynamic refresh animation



FIG. 1 is a front view of a display screen or portion thereof having a graphical user interface for displaying a dynamic refresh animation showing my new design;

FIG. 2 is a front view of a second image thereof;

FIG. 3 is a front view of a third image thereof;

FIG. 4 is a front view of a fourth image thereof;

FIG. 5 is a front view of a fifth image thereof;

FIG. 6 is a front view of a sixth image thereof;

FIG. 7 is a front view of a seventh image thereof;

FIG. 8 is a front view of a eighth image thereof;

FIG. 9 is a front view of a ninth image thereof;

FIG. 10 is a front view of a tenth image thereof;

FIG. 11 is a front view of a eleventh image thereof; and,

FIG. 12 is a front view of a twelfth image thereof.

The appearance of the animated design transitions sequentially between the images shown in FIGS. 1-12 . The process or period in which one image transitions to another forms no part of the claimed design.

The broken lines showing a device form no part of the claimed design. The broken lines showing a display screen form no part of the claimed design. 

CLAIM The ornamental design for display screen or portion thereof having a graphical user interface for displaying a dynamic refresh animation, as shown and described. 